MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged applications with an operating temperature range of -65 °C to 200 °C. These connectors come in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, with straight and 90-degree cable clamp plugs available. Compliant with military specification MIL-DTL-38999 II, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Crafted from aluminum, these connectors offer plating options such as gold, electroless nickel, and cadmium finishes. Ideal for harsh environments, they ensure reliable performance with features like bayonet coupling, conductive socket contacts, and a service rating of M. RoHS compliant versions are also available for environmentally conscious applications.